Fair Value of Other Securities (Details Textual) (USD $)
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3 Months Ended | ||
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Mar. 31, 2015
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Nov. 30, 2012
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Mar. 31, 2014
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Schedule of Equity Method Investments [Line Items] | |||
Transfers between levels | $ 0corr_FairValueTransfersBetweenLevelsTransfersAmount | $ 0corr_FairValueTransfersBetweenLevelsTransfersAmount | |
Escrow Receivable Release Percentage after Time Expiration | 50.00%corr_EscrowReceivableReleasePercentageafterTimeExpiration | ||
Lightfoot Capital Partners LP [Member] | |||
Schedule of Equity Method Investments [Line Items] | |||
Equity interest |
6.70%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = corr_LightfootCapitalPartnersLpMember |
6.70%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = corr_LightfootCapitalPartnersLpMember |
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Vantacore Partners LP [Member] | |||
Schedule of Equity Method Investments [Line Items] | |||
Equity interest |
11.10%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = corr_VantacorePartnersLpMember |
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Minimum [Member] | Lightfoot Capital Partners LP [Member] | |||
Schedule of Equity Method Investments [Line Items] | |||
Fair Value Inputs, Discount for Lack of Marketability |
16.60%us-gaap_FairValueInputsDiscountForLackOfMarketability / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = corr_LightfootCapitalPartnersLpMember |
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Fair Value Inputs, Discount Rate |
12.00%us-gaap_FairValueInputsDiscountRate / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = corr_LightfootCapitalPartnersLpMember |
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Maximum [Member] | Lightfoot Capital Partners LP [Member] | |||
Schedule of Equity Method Investments [Line Items] | |||
Fair Value Inputs, Discount for Lack of Marketability |
21.30%us-gaap_FairValueInputsDiscountForLackOfMarketability / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = corr_LightfootCapitalPartnersLpMember |
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Fair Value Inputs, Discount Rate |
14.00%us-gaap_FairValueInputsDiscountRate / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = corr_LightfootCapitalPartnersLpMember |
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- Definition
Escrow Receivable Release Percentage after Time Expiration No definition available.
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Fair value transfers between levels transfers amount. No definition available.
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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Adjustment to the discount rate used to measure fair value for lack of ability to convert business interests into cash quickly. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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